Combined XAS and XRD “in operando” insights in Li ion intercalation in cathode materials with spatial resolution

JORI, KHALIL; QUIROGA ARGAÑARAZ MARIA PIA; RODRIGUEZ AUGUSTO; SANSERVINO, MIGUEL A.; ORTIZ MARIELA; SILVEIRA, JOAQUIN A; JOSE MARTIN RAMALLO LOPEZ; GIOVANETTI, LISANDRO J. ; ESCUDERO, CARLOS; FELIX REQUEJO

Campinas, SP, BRAZIL

Conferencia; International Conference on Vacuum Ultraviolet and X-ray Physics (VUVX 2023); 2023

Laboratório Nacional de Luz Síncrotron (LNLS)

Recents Lithium-ion batteries (LIBs) studies are devoted to understand the interface processes that are crucial in the reversible Li ion uptake.Some of the most promising cathodes for LIBs are based on LiFePO4 (LFP), Mn and Ni spinels (LMNO) and Lithium rich spinels. Thosematerials arise as candidates because they are safer and cheaper to produce and possess higher energy densities compared with thestate-of-the art LiCoO2 (LCO) [1].In this report we highlight some of our recent results with the combination of X-ray diffraction (XRD) and X-ray absorption (XAS) duringcharge/discharge in situ measurements of different LFP and Lithium rich batteries.